使用 NSDateFormatter 转换 NSDate

Question

我有一组日期为NSStrings。它们采用下一种格式：1980/9/26 17:23:00。问题是从 1 到 9 的月份不包括零。所以有些日期是 1980/9/26 17:23:00，有些是 1980/12/26 17:23:00。日期格式化程序获得 yyyy/mm/dd hh:mm:ss 或 yyyy/m/dd hh:mm:ss。

无论我使用这两种格式中的哪一种，我都无法格式化这两种日期类型。这是我顺便使用的代码：

-(NSString *) convertDate : (NSString *) unformatted
{

//Format the Date
NSDateFormatter *dateFormat = [[NSDateFormatter alloc] init];
[dateFormat setDateFormat:@"yyyy/mm/dd hh:mm:ss"];

NSDate *date = [dateFormat dateFromString:unformatted];

//Format the Calendar
NSDateFormatter *f = [[NSDateFormatter alloc] init];
NSCalendar *persian = [[NSCalendar alloc] initWithCalendarIdentifier:@"persian"];
[f setCalendar:persian];
[f setDateStyle:NSDateFormatterLongStyle];

NSString *formattedDate = [f stringFromDate:date];
//Replace english strings with farsi strings
formattedDate=[formattedDate stringByReplacingOccurrencesOfString:@"Farvardin" withString:@"فروردین"];
formattedDate=[formattedDate stringByReplacingOccurrencesOfString:@"Ordibehesht" withString:@"اردیبهشت"];
formattedDate=[formattedDate stringByReplacingOccurrencesOfString:@"Khordad" withString:@"خرداد"];
formattedDate=[formattedDate stringByReplacingOccurrencesOfString:@"Tir" withString:@"تیر"];
formattedDate=[formattedDate stringByReplacingOccurrencesOfString:@"Mordad" withString:@"مرداد"];
formattedDate=[formattedDate stringByReplacingOccurrencesOfString:@"Shahrivar" withString:@"شهریور"];
formattedDate=[formattedDate stringByReplacingOccurrencesOfString:@"Mehr" withString:@"مهر"];
formattedDate=[formattedDate stringByReplacingOccurrencesOfString:@"Aban" withString:@"آبان"];
formattedDate=[formattedDate stringByReplacingOccurrencesOfString:@"Azar" withString:@"آذر"];
formattedDate=[formattedDate stringByReplacingOccurrencesOfString:@"Dey" withString:@"دی"];
formattedDate=[formattedDate stringByReplacingOccurrencesOfString:@"Bahman" withString:@"بهمن"];
formattedDate=[formattedDate stringByReplacingOccurrencesOfString:@"Esfand" withString:@"اسفند"];
formattedDate=[formattedDate stringByReplacingOccurrencesOfString:@"AP" withString:@""];

return formattedDate;
}

Answer 1

您需要使用MM 几个月。此外，您需要使用 HH 几个小时。试试这个格式：yyyy/MM/dd HH:mm:ss。